$alphatest: Difference between revisions
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{{lang|$alphatest|title= | {{lang|$alphatest|$title=$alphatest}} | ||
'''<code style="color:white">$alphatest</code>''' is a [[material]] [[shader]] parameter avaliable in all [[Source]] games. It specifies a mask to use to determine binary opacity. White represents fully opaque, while black represents fully transparent. Any values in-between are rounded to either 0 or 1. This effect is similar to <code>[[$translucent]]</code>, except that it can not be semi-opaque, is much faster to render, and the engine can sort it properly when layered. | '''<code style="color:white">$alphatest</code>''' is a [[material]] [[shader]] parameter avaliable in all [[Source]] games. It specifies a mask to use to determine binary [[opacity]]. White represents fully opaque, while black represents fully transparent. Any values in-between are rounded to either 0 or 1. This effect is similar to <code>[[$translucent]]</code>, except that it can not be semi-opaque, is much faster to render, and the engine can sort it properly when layered. | ||
==Syntax== | ==Syntax== | ||
$alphatest <[[Boolean|bool]]> | '''$alphatest <[[Boolean|bool]]>''' | ||
==VMT example== | ==VMT example== | ||
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</div> | </div> | ||
Notice how the right circle hardly changes. | Notice how the <code>$alphatest</code> right circle hardly changes. | ||
==See also== | ==See also== | ||
Revision as of 22:37, 13 June 2021
$alphatest is a material shader parameter avaliable in all Source games. It specifies a mask to use to determine binary opacity. White represents fully opaque, while black represents fully transparent. Any values in-between are rounded to either 0 or 1. This effect is similar to $translucent, except that it can not be semi-opaque, is much faster to render, and the engine can sort it properly when layered.
Syntax
$alphatest <bool>
VMT example
LightmappedGeneric { $basetexture "glass\window001a" $alphatest 1 $alphatestreference .5 $allowalphatocoverage 1 }
Additional parameters
$alphatestreference
$allowalphatocoverage
Comparison
$translucent |
$alphatest
|
|---|---|
Notice how the $alphatest right circle hardly changes.